water heater up to code


Old 04-14-03, 03:50 PM
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water heater up to code

I am needing my hot water heater replaced and I know for a fact that the old one was not up to code on several counts. The heater is in a pantry in the kitchen and I'm having to add a drip pan, proper ventilation and proper relief valve drainage. I'm going to have a plumber install the water heater... but I wanted to have him do as little as possible to bring it up to code
I assume the UPC addresses many of these things -- and my main questions are:
can the relief valve drain into the drip pan (6 inches from) and THEN to the outside of the house... and will a large louvered vent at the bottom of the pantry door suffice, or do I need venting at top AND bottom?

Any experience with this will be a great help as local plumbers and code office don't seem to be hip on answering specific questions... thanks!

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Old 04-14-03, 09:42 PM
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In my area, you can not drain the relief line into the drip pan... The relief line and the drain pan drain have to go outside separately... The reason is that if you ever walk by and see the drain leaking outside, you should be able to tell which one is leaking and causing the problem... Of course, from a funtional standpoint, the relief line could be drained into the pan safely if the pan is installed correctly... As for the louvres, one at the bottom would be sufficient, but code in some areas does require top and bottom, so you may have to take the plumbers word on what is considered 'sufficient' in your area... I will say that I have NEVER had an inspector question combustion air when there was atleast one louvre in the door... As for the drip pan, however, it is not required as long as the water heater is in an area where a drip would be noticed relatively quickly and would not sit and cause damage for weeks before it was noticed, as in an attic or upstairs utility closet... Unfortunately, you mention an are that allows for a lot of inspector discretion and you will likely have to trust your plumber to a large degree...
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